Remember supply is btc as a function of dollars, so higher doller costs means lower btc supply.
I don't get this one.
We still generate Bitcoins at 50 BTC/Block, which means 300 BTC/hour at the average 6 Blocks/hour.
So how is the BTC supply now connected to the dollar? (non-rethorical question, I'm serious)
I believe he was referring to the creation of BTC being linked to the cost of equipment/electricity in $$. The more expensive it is to mine, the fewer BTCs will be around...although for that to really be correct it can only apply to a particular 2016 block cycle, what with difficultly adjustments and all.